Bistahieversor (meaning "Bistahi Destroyer") is a genus of tyrannosauroid from the Late Cretaceous Period of New Mexico, USA. It is known from a partial skull and skeleton, though it was first thought to be Aublysodon. It was first described in 1990 as the Aublysodon. Later, in 2000, it was re-described by Thomas Carr and Thomas Williamson as a new species of Daspletosaurus. It wasn't until 2010 that Bistahieversor was named Bistahieversor, again by Thomas Carr and Thomas Williamson. The type species is B. sealeyi.